Word: rna
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Dates: during 1980-1989
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Ordinarily, interferon is produced by virtually all cells in the human body, which get their instructions for making it from a specific gene in their DNA; these are passed on to the cells' protein-manufacturing sites by a genetic molecule known as messenger RNA. But for Hungarian-born Charles Weissmann of the University of Zurich, and his Swiss, Finnish and Japanese colleagues, the natural process was only a starting point. After extracting messenger RNAs from human white blood cells, which were producing interferon, they used these molecules to generate sections of DNA that they hoped would include the required...